Transparency.



PA B TED JULY 30,1907.

P.- E. COLLINS.

TRANSPARENCY.

APPLICATION FILED DBO. 7. 1904.

Waxgaayes.

PAUL E. COLLIN S,OF BOSTON. MAssAoEUsET MENTs, To ELECTRIC NOVELTY MACHIN CORPORATION OF MASSACHUSETTS.

TS, ASS'IGNOR BY DIRECT AND MESNE ASSIGN- E COMPANY, OF BOSTON, MASSACHUSETTS,- A" i TRANSPARENCY.

Application filed December To all whom may-concern:

;Be it known that I, PAUL E. CoLLINs',-a citizen of the United States, residing in'Boston, county of Suffolk, I

p and State of Massachusetts, have invented an Improvement in-Transparencies, of whichthe following de-.

, scription, in connection with the accompanying drawings, is a specification resenting like parts.

The present invention relatesto-atransparency, and

is mainly intended'for use in connection with advertising signs, bulletin, boards &.cl where frequent changes are made in the matter displayed. I I

They invention is embodied in' a casing arranged to 'inclose' illuminating elements, such as incandescent electric lampsfthe said casing having, at the front, guide ways toreceive'sliding frames which, in turn, are arranged to receive blocks, 'eachof whigh is provided, for example, with a transparent letter, so that the blocks can be set up quickly in any desired arrangement, and

the slides then put in'position infront of the casing.

Figure l is a front elevation of an appaiatusembodying the invention; Fig. 2 is aside elevation'with parts broken away and shown in vertical section; and Fig.3 is a horizontal section, on line 22 Of Fig. 1.

2 5 The casing a which contains the illuminating element such, for example, as the electric lamps A, is open at 4 v the front andprovided with partitions a which, in conjunction with the end walls of the casing, afford guiding supports for slides 11, the partitions and the end Wells being provided, for this purpose, with rooves a sothat the slides can be inserte'dendwise slides b in turn is provided with guideways b iior the'insertion of blocks 1; which are herein shown astormed of glass covered with anopaque substance as heavy paper in which a form, such that of a letter is cut,

thus making transparent l'etters upon an opaque backv ground. The blocks designed for use-with each slide may be made substantially uniform intype, and any 2 sign desired: can be quickly set up by sliding the blocks 40 into 'place,1 each slide having a hinged locking member. b at the open end to lock the blocks afterthey have been setup inthe slide. As herein shown, the hinged member is held in position by means of a turn'bolt b",

After the letters haveb'een set in the slides, the slides arepushedendwise into the channels a and are locked in position in any suitableway, as by a hinged member a*, herein shown as provided with a ring a to cooperate with a similar ring aon the face' of the casing, so that v the parts can be secured together as, for, example, by a Specification ofLetters Patent.

,like letters on the drawings rep- Patented July 30,1907. 7, 904. S aria-1N0. 235,895.

padlock o. It is desirable that the slide openings in the casing. should be uniform'in size, 'while the slides themselves may be provided with two or more sets of tracks 1fdcs1red,so that variations may be easilymadc in thesize and arrangement of the. sign. In thecon struction shown, for example, the supporting partitions a are separated adistanceequal to the width of the top slide which is arranged to take in large letters, and the smaller letters are provided for by providing one of the slides with one or more additional tracks or guide-ways through the middle This makes the scveral slides interchangeable, so that, if, for example; two rowsot smaller letters-were'required at the top, and the larger'letters below, the twoslidcs can be transposed so that any' arrangement desired can be easily. I obtained.- If, incases where a slide has two or more rows of letters, it is desired to illuminate different rows with different colored lamps, the casing maybe ro vided witha' socket orsupport a to receive a detachable partition .a", thepurpose of which is merely to separate lights of one color from those of another.

As indicated in Fig. 3, the blocks-are provided along adjoining edges with strips a of yielding nnitcrial, such as rubber, so that when'tlre blocks are set up and pressed together, the light will be wholly obscuredoxcept in the transparent design'portipn.

1. A casing having projecting walls-and'pnrallelpnri'i- .tions forining separatecompartments, tlic \vulls and com,- partments being provided with guide grooves; electric Jumpscontained in said compartments; rectangular slidesadpted, to be inserted cndwisc in said grooves opaque elements uniform in size and having transparent designs therein; andmeans for securing said elements in a row. adjacent to each other in said slide.

2. 111v atransparenqv, the combination with a casing having projecting walls; illuminating elements contained in said casing; detachable slides. secured in grooves or guide ways formed in said \vulls; separate transparent members interchangeably secured in said slides. rand partitions to separate the illuminating eiemems' behind one slide from those behind anotbeitns set forth.

In a transparency, a casing containing illuminating means, and adesign portion consisting of interchangeable holders; and a plurality of separate design elements errang ed to be assembled in each holder,- enchdesign element being provided with a strip of yielding matcrial,--ivliercby light-is wholly excluded between adjacentylenicnts.

In testimony whereofll have signed my name to H123 specification in the presence of two subscribing witn s s.

Witnesses: t

HENRY J. LI vnmromz, .TAs. J. MALONEY. 

